is discus tank too crowded?
Posted: Tue Sep 16, 2025 4:52 pm
I've got a 75-gallon tank with 8 adult Discus, a school of 12 Cardinal Tetras, and 6 Corydoras. The Discus are around 5-6 inches each. I do 50% water changes twice a week, pH is stable at 6.5, temp at 84°F. They seem fine but I'm worried about space. Am I pushing it?